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when i add a new product through the zope management interface (call it myTest for example) and then add a new Zope Factory in this Product (with the "Add list name" something like TEST), "TEST" will be also listed in the "Select type to add"-list of the Index-Tab in a ZCatalog...

I've tested this on fresh installations of 2.4.3 and 2.5.0b4. same results. i think i must do something with "filtered_meta_types", but i don't know what.

can anyone give me clue? or is it a bug?

Uhm, no. Thats whats supposed to happen. When you create a new type of product, you need a way to create the object that instantiates the product. And the add box is it. So nothing is broken, everything is as it should.

Adding the new product metatype to the "Select type to add..." in the Management Interface is that what I want and what i get!!! but I DON'T want an entry in the "Add list name" in a ZCATALOG's INDEX-Tab. What to do? thank you mjablonski.